feat: better recursive descent

pkg/saccharine/token.go

@@ -1,27 +0,0 @@
-package saccharine
-
-// All tokens in the pseudo-lambda language.
-type TokenType int
-
-const (
-	// Denotes the '(' token.
-	TokenOpenParen TokenType = iota
-	// Denotes the ')' token.
-	TokenCloseParen
-	// Denotes an alpha-numeric variable.
-	TokenVariable
-	// Denotes the '/' token.
-	TokenSlash
-	// Denotes the '.' token.
-	TokenDot
-)
-
-// A representation of a token in source code.
-type Token struct {
-	// Where the token begins in the source text.
-	Index int
-	// What type the token is.
-	Type TokenType
-	// The value of the token.
-	Value string
-}